1. Magnetic resonance imaging (MRI) is necessary, primarily for the detection ofvarious pathologies of the human body. Biophysical studies have shown thatmeasured values ​​of T1 and T2 characterize the spectrum of molecular motion of water molecules.

For bioliquids and tissues of the human body, this spectrum is sharply reduced in intensity at frequencies above a few megahertz and a maximum of hundreds of kilohertz. Therefore, low-pass MRI would be more effective for medical diagnosis,varies considerably when the spectrum of molecular motion in the case of pathological changes, such as cancer.

2. Low-frequency scanner with permanent magnets has a remarkable feature of the low-power (hundreds of watts rather than tens of kilowatts, a typical value for an MRI with a superconducting magnet). This allows a low-pass MR Imaging in almost every medical center and even in the clinic.

3. In the future, the possibility of increasing sensitivity and improving signal to noise ratio in the low-frequency MR scanner are also available. To do this, you want to apply the method of cycling the magnetic field is created when additional pulsed field immediately after receiving a signal of magnetic induction. Since these fields are also low-frequency, power consumption will increase slightly.

4. The open magnet system imager allows for implementation of the "teragnostiki (therapeutic diagnosis)", ie diagnosis in the therapy process.

5. Low-field scanners network may have remote access to the center of reception and processing of medical information - a telemedicine technique.

All of the above allows us to recommend low-frequency "Public MRI scanner" for the mass production and rapid deployment of the medical practice.

Zam. Head of the Department of Medical Physics, Physics Department of Moscow State University.

Doctor of Physical and Mathematical Sciences

Professor M. Petrusevich